Many people have blisters and sores that come back after the first herpes attack goes away. This is called a recurrence. Usually, the symptoms aren't as bad as they were during the first attack.
Stress, being sick or being tired may start a recurrence. Being in the sun or having your menstrual period may also cause a recurrence. You may know when a recurrence is about to happen because you may feel itching, tingling or pain in the places where you were first infected.
Written by familydoctor.org editorial staff